1057.    ---------------.  [FORRESTIER, H., AND KIEHL, J. P.] [Effect of Adsorbed Gases on the Rate of Reaction Between Metallic Oxides.]  Jour. Chem. Phys., vol. 27, 1950, pp. 165-173; Chem. Abs., vol. 44, 1950, p. 7128.

        The rate of formation of ferrite from Fe2O3 and NiO increases logarithmically with the partial pressure of H2O present over the pressure range of 10-5 –760 mm. at 500°-700°.  Extrapolation indicates 0 reaction rate at 10-5 mm.  The order of decreasing efficiency of gases in speeding up the reaction in the temperature range 600°-700° is H2O, CO2, A and O2, air, N2, Ne, and He.